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1 771959 Petasites spurius (Retz.) Rchb. [181 1040492 Tussilago spuria Retz.]
H.G.L. Reichenbach, Icon. Fl. Germ. Helv., vol. 16 (Die Corymbiferen der deutschen Flora ): t. 897 (1854) [H.G. Reichenbach]
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